High beams cause the dash lights to go out

Discussion in 'Ranchero Tech Help' started by dadcohn, Jul 22, 2019.

  1. dadcohn

    dadcohn In Second Gear

    Messages:
    29
    Location:
    Danville, CA
    I finally got the dash lights to work (except the high beam indicator) on my 64 after replacing the constant Voltage Regulator. Unfortunately that didn’t fix my fuel gauge problem. When I press the high beam switch on the floor the dash lights go out but return if I press it again. Any thoughts on that guys? Thanks!
     
  2. handy_andy_cv64

    handy_andy_cv64 In Maximum Overdrive SILVER MEMBER

    Messages:
    9,381
    Location:
    Everett, WA
    This is a weird one (what else is new?). The dimmer only switches between the headlights and has zip to do with interior illumination. Even if the high beam indicator was incorrectly wired, it should not cause the lighting to turn off. Blow a fuse, I could see that; it happened to me when a friend wired a radio for me way back when. After that, I did my own radios. Anyway, the upshot was that power connected to power blew a fuse. But in this instance, the lights come back on, on low beam.
     
  3. 5.0 Chero

    5.0 Chero Bahumbug Staff Member

    Messages:
    13,909
    Location:
    Prunetucky California
    sounds like the lights are grounding through the high beam light
     
  4. pmrphil

    pmrphil In Overdrive GOLD MEMBER

    Messages:
    957
    Bingo !!
     
  5. 65restomod

    65restomod In Fourth Gear BRONZE MEMBER

    Messages:
    413
    Location:
    Danville,VT left NJ forever
    Yea, definitely check grounds at the headlights
     
  6. 5.0 Chero

    5.0 Chero Bahumbug Staff Member

    Messages:
    13,909
    Location:
    Prunetucky California
    he needs to make sure the lighting circuit instrument cluster housing is grounded
     
    Freestyle Don likes this.
  7. dadcohn

    dadcohn In Second Gear

    Messages:
    29
    Location:
    Danville, CA
    Don’t the screws that hold the instrument cluster ground it?
     

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